Sionna Therapeutics: Ownership Change Reported
Ticker: SION · Form: 4 · Filed: Apr 22, 2026 · CIK: 0002036042
Sentiment: neutral
Topics: insider-filing, ownership-change
TL;DR
Sionna Therapeutics insider Peter Thompson filed a Form 4 on ownership changes.
AI Summary
On April 17, 2026, Peter A. Thompson reported a change in beneficial ownership of securities for Sionna Therapeutics, Inc. The filing, dated April 21, 2026, details these changes as per SEC regulations.
Why It Matters
This filing indicates a change in the holdings of a key individual, which can sometimes signal shifts in insider confidence or strategy.
Risk Assessment
Risk Level: low — Form 4 filings typically report routine changes in beneficial ownership and do not inherently represent significant risk.
Key Players & Entities
- Sionna Therapeutics, Inc. (company) — Issuer
- Peter A. Thompson (person) — Reporting Person
- 0000947871-26-000459 (filing_id) — SEC Accession Number
- 2026-04-17 (date) — Period of Report
- 2026-04-21 (date) — Filing Date
FAQ
What type of form was filed?
A Form 4 - Statement of changes in beneficial ownership of securities was filed.
Who is the reporting person?
Peter A. Thompson is the reporting person.
What is the name of the issuer?
The issuer is Sionna Therapeutics, Inc.
When was the period of report?
The period of report was April 17, 2026.
What is the SEC Accession Number for this filing?
The SEC Accession Number is 0000947871-26-000459.
Filing Details
This Statement of Changes in Beneficial Ownership (Form 4) was filed with the SEC on April 22, 2026 by Peter A. Thompson regarding Sionna Therapeutics, Inc. (SION). Form 4 filings disclose purchases, sales, or other changes in ownership by company insiders such as officers, directors, and major shareholders.